know-it-all
noun
: one who claims to know everything
also
: one who disdains advice
know-it-all
adjective
Examples of know-it-all in a Sentence
Recent Examples on the Web
Laine MacNeil had her first major role playing Greg Heffley's know-it-all nemesis Patty Farrell in the first three installments of the Wimpy Kid franchise, including Rodrick Rules and Dog Days.
—
Gillian Telling,
PEOPLE,
29 June 2026
His electric Broadway debut as a cocky, yet vulnerable know-it-all just edged Christopher Abbott for the Should prize.
—
Dalton Ross,
Entertainment Weekly,
29 May 2026
Advertisement The most effective leaders are not, in fact, know-it-alls.
—
Simone Stolzoff,
Time,
12 May 2026
Dominic McLaughlin will play the Boy Who Lived, Harry Potter, while Alastair Stout plays his best friend Ron Weasley and Arabella Stanton plays know-it-all Hermione Granger.
—
K.j. Yossman,
Variety,
10 May 2026
See All Example Sentences for know-it-all
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Gillian Telling,
PEOPLE,
29 June 2026
His electric Broadway debut as a cocky, yet vulnerable know-it-all just edged Christopher Abbott for the Should prize.
—
Dalton Ross,
Entertainment Weekly,
29 May 2026
Advertisement The most effective leaders are not, in fact, know-it-alls.
—
Simone Stolzoff,
Time,
12 May 2026
Dominic McLaughlin will play the Boy Who Lived, Harry Potter, while Alastair Stout plays his best friend Ron Weasley and Arabella Stanton plays know-it-all Hermione Granger.
—
K.j. Yossman,
Variety,
10 May 2026
See All Example Sentences for know-it-all
Cite this Entry
“Know-it-all.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/know-it-all. Accessed 6 Jul. 2026.
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